Figure 3

Risk ratio for post-extubation stridor according to the studied population. Risk ratios of post-extubation stridor rate for the individual randomised controlled trials comparing steroids with control groups and the pooled analysis. Vertical line = 'no difference' point between the two groups; squares = risk ratios (the size of each square denotes the proportion of information given by each trial); diamonds = pooled odds ratios for randomised controlled trials that did not select patients at high risk (upper) and trials that did selected patients at high risk, based on a reduced cuff leak volume (CLV; lower); horizontal lines = 95% confidence intervals (CI).